Metal founding – Process – Shaping liquid metal against a forming surface
Patent
1987-05-19
1992-06-16
Heinrich, Samuel M.
Metal founding
Process
Shaping liquid metal against a forming surface
164108, B22D 1700, B22D 1900, B22D 2500
Patent
active
051217864
ABSTRACT:
A process for manufacturing a siamese-type clyinder block which is disclosed herein comprises a blank making step of providing a cylinder block blank in which a sleeve made of a cast iron is cast in each cylinder barrel of a siamese-type barrel made of an aluminum alloy and consisting of a plurality of cylinder barrels connected in series, and a mechanically working or machining step of forming the inner peripheral surface of each sleeve of the cylinder block blank into a true circle. The process is characterized in that the blank making step includes placing highly rigid sleeves each having a thickness set as large as 10% or more of the inner diameter thereof into a siamese-type cylinder barrel molding cavity in a mold and then pouring a molten metal of aluminum alloy under a pressure into the cavity to effect a casting. The sleeve is cast-in as it is at an ambient temperature or in a heated state. A cylinder block blank resulting from the casting-in of sleeves at an ambient temperature is subjected to a thermal treatment for reducing the casting strain in each cylinder barrel.
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Ebisawa Masuo
Hamashima Toshio
Kaiho Shigeo
Kanzawa Yoshikazu
Kawase Akio
Cohen Julian
Heinrich Samuel M.
Honda Giken Kogyo Kabushiki Kaisha
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